noop
Does nothing and returns undefined
33 bytes
Usage
This is useful when you need to pass a function somewhere, but you don’t care when it runs or what it receives.
Since noop
has a function signature of () => undefined
, you will be warned by TypeScript if you pass it where a function is expected to return something different.
FAQ
- Shouldn’t I just use
?.
operator?
Where possible, yes you should. Thenoop
is best for cases where you’re not in control of the code that calls it and a function is required.